Cryogenic SiPM arrays for the DUNE photon detection system
Cryogenic SiPM arrays for the DUNE photon detection system
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DOI：
10.1016/j.nima.2020.164648
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发表时间：
2021-01-01
影响因子：
1.4
通讯作者：
Zutshi, V
中科院分区：
文献类型：
--
作者：
Falcone, A.;Andreani, A.;Zutshi, V
本文报道了用于DUNE光子探测系统研发的SiPM瓷砖的特性。瓷砖由布鲁诺凯斯勒基金会（FBK）采用近紫外线高密度标准场（NUV-HD-SF） SiPMs生产。特别强调了传感器的低温可靠性，即室温和77 K温度下热循环后电气和机械性能的稳定性。表征包括I-V曲线的确定，不同过电压下暗计数率的高灵敏度测量以及相关噪声。在使用专用冷放大器在77 K下放大后，测量单个p.e.灵敏度作为连接到单个电子通道的传感器数量的函数。
In this paper we report on the characterization of SiPM tiles developed for the R&D on the DUNE Photon Detection System. The tiles were produced by Fondazione Bruno Kessler (FBK) employing Near Ultra-Violet High Density Standard Field (NUV-HD-SF) SiPMs. Special emphasis is given on cryo-reliability of the sensors, i.e. the stability of electric and mechanical properties after thermal cycles at room and 77 K temperature. The characterization includes the determination of the I-V curve, a high sensitivity measurement of Dark Count Rate at different overvoltages, and correlated noise. The single p.e. sensitivity is measured as a function of the number of sensors connected to a single electronic channel, after amplification at 77 K using a dedicated cold amplifier.